VIA Technologies VAB-3000 User manual

QUICK START GUIDE
VIA VAB-3000
Yocto 3.1 EVK
1.00-19092023

Copyright
Copyright © 2023 VIA Technologies Incorporated. All rights reserved.
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form or by any means, electronic, mechanical, magnec, opcal, chemical, manual or otherwise without the prior wrien permission of
VIA Technologies, Incorporated.
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VIA Technologies makes no warranes, implied or otherwise, in regard to this document and to the products described in this document.
The informaon provided in this document is believed to be accurate and reliable as of the publicaon date of this document. However,
VIA Technologies assumes no responsibility for the use or misuse of the informaon (including use or connecon of extra device/
equipment/add-on card) in this document and for any patent infringements that may arise from the use of this document. The informaon
and product specicaons within this document are subject to change at any me, without noce and without obligaon to nofy any
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VIA Technologies, Inc. reserves the right the make changes to the products described in this manual at any me without prior noce.
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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
Revision History
Version Date Remarks
1.00 19/09/2023 Inial release

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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
Table of Contents
1. Introducon.................................................................................................................................................... 1
1.1 EVK Package Contents........................................................................................................................... 1
1.1.1 Firmware Folder Contents ............................................................................................................. 1
1.1.2 Document Folder Contents............................................................................................................ 1
1.1.3 Tool Folder Contents...................................................................................................................... 1
1.2 Version Informaon and Supported Features....................................................................................... 2
2. Image Installaon .......................................................................................................................................... 3
2.1 Installing with the Fastboot Mode ........................................................................................................ 3
3. Hardware Funcons ....................................................................................................................................... 5
3.1 Using the Debug Console...................................................................................................................... 5
3.2 Changing the Kernel Debug Level ......................................................................................................... 6
3.3 Checking the BSP Version...................................................................................................................... 6
3.4 DVFS...................................................................................................................................................... 7
3.5 Display................................................................................................................................................... 7
3.6 Video playback...................................................................................................................................... 7
3.7 Audio Output and Record ..................................................................................................................... 8
3.8 Camera.................................................................................................................................................. 9
3.9 Wi-Fi...................................................................................................................................................... 9
3.10 Bluetooth ............................................................................................................................................ 10
3.11 MTK NeuroPilot AI APU Hardware Acceleraon ................................................................................. 10

1
VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
1. Introducon
This Quick Start Guide provides an overview of how to boot the Yocto image for the VIA VAB-3000 board and
congure the supported hardware funcons in the build.
The VIA VAB-3000 Yocto 3.1 EVK is developed based on the MediaTek Yocto 3.1 BSP, and it enables the
hardware features of the VIA VAB-3000 board.
1.1 EVK Package Contents
There are three folders in the package listed as below.
Firmware folder Descripon
VIA_VAB-3000_Yocto_3.1_EVK.zip Yocto evaluaon image
Document folder Descripon
VIA_VAB-3000_Yocto_3.1_EVK_Quick_Start_Guide.pdf Quick Start Guide
Tool folder Descripon
VIA_Android_USB_Driver.zip VIA USB driver
np3.0.tgz Sample test program
1.1.1 Firmware Folder Contents
VIA_VAB-3000_Yocto_3.1_EVK.zip: Contains the precompiled Yocto image for evaluang the VIA VAB-3000
board.
1.1.2 Document Folder Contents
VIA_VAB-3000_Yocto_3.1_EVK_Quick_Start_Guide.pdf: This Quick Start Guide provides an overview on how
to boot the Yocto image for the VIA VAB-3000 board and congure the supported hardware funcons in the
build.
1.1.3 Tool Folder Contents
VIA_Android_USB_Driver.zip: The VIA driver for ADB-over-USB.
np3.0.tgz: A sample program to test MTK NeuroPilot AI APU hardware acceleraon.

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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
1.2 Version Informaon and Supported Features
• Kernel version: 4.14.87
• Evaluaon image: Yocto 3.1
• Development based on MediaTek Yocto 3.1 BSP
• Supports eMMC boot
• Supports HDMI display
• Supports HDMI audio output
• Supports MIPI DSI capacive touch panel
−ShenZhen K&D 7" KD070D54-39NH-B018-A (1024x600)
−Silead GSL1680 I2C touch
• Supports COM port as RS-232 mode (TX/RX)
• Supports 10/100Mbps Ethernet port
• Supports MediaTek MT6357 Line-out and Mic-in
• Supports MediaTek MT6631 Wi-Fi 802.11ac and Bluetooth 5.0
• Supports VIA EMIO-2573 (EC25) 4G LTE mobile broadband miniPCIe module
• Supports MIPI CSI IMX135 camera module
• Supports MediaTek NeuroPilot AI APU hardware acceleraon

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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
2. Image Installaon
This secon explains the setup requirements for boong from the eMMC.
The precompiled images are provided in the "Firmware" folder.
2.1 Installing with the Fastboot Mode
The rst step is to prepare the "fastboot tool" and install the "VIA USB driver" into your Windows 10 host
machine.
To get the "fastboot tool" for Windows, please refer to the "SDK Plaorm Tools release notes" chapter on the
Android developer website (hps://developer.android.com/studio/releases/plaorm-tools).
To install the "VIA USB driver", right-click on the mouse buon to install the "android_winusb". When nished,
it will show "The operaon completed successfully".
Then connect the Windows 10 host machine and the VIA VAB-3000 board through the Micro USB 2.0 port
using the Micro USB cable.
Micro USB
Micro USB 2.0 port diagram
Plug in the AC-to-DC power adapter to power on the VIA VAB-3000 board.
The VIA VAB-3000 board will stop at "fastboot: processing commands" as shown in the debug console below.
Fastboot Mode
Note:
Make sure the Windows 10 host machine detects the VIA VAB-3000 board as an Android device.
Extract the VIA_VAB-3000_Yocto_3.1_EVK.zip les on your Windows 10 host machine.
To install the image, use the following command:
D:\VIA_VAB-3000_Yocto_3.1_EVK>set PATH=D:\platform-tools;%PATH%
D:\VIA_VAB-3000_Yocto_3.1_EVK>viaash.exe --yocto
VIA: Operating system is Yocto
VIA: erasing preloader partition
VIA: installing bl2.img
VIA: installing MBR_EMMC
VIA: installing tee.img
VIA: erasing tee_b partition
VIA: installing boot.img
VIA: erasing boot_b partition
VIA: installing system.img
VIA: erasing system_b partition
VIA: installing userdata.ext4
VIA: rebooting target system
D:\VIA_VAB-3000_Yocto_3.1_EVK>

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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
If you have already installed the image, use the following command to enter the Fastboot Mode on your
Windows 10 host machine.
D:\platform-tools>adb shell reboot bootloader
Unplug the AC-to-DC power adapter to power o the VIA VAB-3000 board.
Unplug the Micro USB cable, press the Power Buon for 2 seconds, then release it to power on the VIA VAB-
3000 board.
When the boot process has completed, you will see the Yocto 3.1 desktop.

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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
3. Hardware Funcons
This secon explains how to enable and test the hardware funcons precompiled in the Yocto 3.1 EVK including
using the debug console.
3.1 Using the Debug Console
Insert one plug connector of the 4-pin FFC cable into the J3 port labeled "UART0" on the VIA VAB-3000 board,
ensuring that the gold nger of the FFC cable faces down.
UART0 Port
Insert the other plug connector of the 4-pin FFC cable into the 4-pin FFC port located on the USB to UART
debug board, ensuring that the gold nger of the FFC cable faces down.

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VIA VAB-3000 Yocto 3.1 EVK Quick Start Guide
FCC Port
Connect the Windows 10 host machine through the Micro USB 2.0 port on the USB to UART debug board using
the Micro USB cable.
Use a serial port communicaon program such as PuTTY or Tera Term to connect the debug console. Set the
console Baud Rate to "921600".
Next, power on the VIA VAB-3000 board to iniate the boot process.
When the boot process has completed, log in to the debug console. The default account is "username: root /
password: root"
3.2 Changing the Kernel Debug Level
To disable the kernel messages, modify the debug level using the following command:
root@aiv8365m1v1-aiot-emmc:~# echo 3 > /proc/sys/kernel/printk
3.3 Checking the BSP Version
To check the BSP version, use the following command:
root@aiv8365m1v1-aiot-emmc:~# cat /proc/version